The warriors of Asgard are bored and Loki has been able to stir up trouble among their ranks. Odin is furious and intervenes when Thor and Loki face each other in combat. Odin then shows them the state of the Odinsword. According to legend, the universe will perish if the sword is ever drawn from its scabbard. Now, an evil force has broken the scabbard. Odin sends his sons on a quest to find this unknown enemy and put an end to this evil scheme.